climate change 2014: synthesis report
TRANSCRIPT
IPCC 5th Assessment Cycle (2008-2014):
Thanks to
WGI Vice Chair
5 Lead Authors
2 Review Editorsof Morocco
Human influence on the climate system is clear.
Continued GHG emissions will cause further warming and
amplify existing risks.
Changes in climate have caused impacts in natural
and human systems.
Multiple pathways exist to likely
limit warming to below 2°C.
Warming of the climate systemis unequivocal
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.1b,
IP
CC
201
4, F
ig.
1.1
Ano
mal
y (°
C)
rela
tive
to
1961
-199
0
Human influence on the climate system is clear, and recent anthropogenic emissions
of greenhouse gases are the highest in history.
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.1c,
d
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.7,
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.6
Global mean surface temperature change from 1986-2005
Further warming will increase the likelihood of
severe, pervasive and irreversible impacts for
people and ecosystems.
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.8,
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.7
Further warming will increase the likelihood of
severe, pervasive and irreversible impacts for
people and ecosystems.
Change in average surface temperature (1986-2005 to 2081-2100)
RCP8.5
Further warming will increase the likelihood of severe,
pervasive and irreversible impacts for people and ecosystems.
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TF
E.2
, F
ig.
2
+19 cm
+63 cm
Warming of 0.8 to 2.5°C
1000 billion tons of carbon
Any climate target implies
a limited carbon budget
Budget for the 2°C target:790 bill t C
CO2 emissions until 2014*:−545 bill t C
CO2 emissions in 2014*: 10.1 bill t C
Remaining emissions:245 bill t C
* up
date
d fr
om I
PC
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WG
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PM
Limiting climate change would require substantial and
sustained reductions in greenhouse gas emissions which,
together with adaptation, can limit climate change risks.